Truck grill



FIG. 1 is a top, front, and left side perspective view of a truck grill showing my new design;

FIG. 2 is a bottom, rear and right side perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a truck grill, as shown. 